Disc Brake Material

theturl
Posts: 36
Does anyone know what material mountain brake discs are manufactured from? I guess 304 Stainless Steel but I am not sure if they are heat treated? I would like to laser-cut my own discs but I obviously would like to do it to the right spec.
Any help would be greatly appreciated.
Any help would be greatly appreciated.
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Comments
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I know some are 410 stainless.0
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They look like they have got a ground finish. I was not sure whether or not they were heat treated though.0